Switch page based on name, no need to store widget pointers this way

data/gtk/window.blp

@@ -63,14 +63,18 @@ template RugbyAppWindow : Adw.ApplicationWindow {
 
         Stack stack {
           StackPage {
-            child: Adw.StatusPage empty_page {
+            name: "empty_page";
+
+            child: Adw.StatusPage {
               icon-name: "list";
               title: "No possibilities";
             };
           }
 
           StackPage {
-            child: ScrolledWindow list_page {
+            name: "list_page";
+
+            child: ScrolledWindow {
               vexpand: true;
 
               ListView listview {

src/rugby-app-window.c

@@ -20,8 +20,6 @@ struct _RugbyAppWindow
     GtkWidget *scorespin;
     GtkWidget *tryspin;
     GtkWidget *stack;
-    GtkWidget *empty_page;
-    GtkWidget *list_page;
 
     GSettings *win_settings;
 
@@ -39,9 +37,9 @@ list_store_items_changed_cb (              GListModel     *model,
 {
     unsigned n_items = g_list_model_get_n_items (model);
     if (n_items == 0)
-        gtk_stack_set_visible_child (GTK_STACK (self->stack), self->empty_page);
+        gtk_stack_set_visible_child_name (GTK_STACK (self->stack), "empty_page");
     else
-        gtk_stack_set_visible_child (GTK_STACK (self->stack), self->list_page);
+        gtk_stack_set_visible_child_name (GTK_STACK (self->stack), "list_page");
 }
 
 static char *
@@ -211,8 +209,6 @@ rugby_app_window_class_init (RugbyAppWindowClass *klass)
     gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, scorespin);
     gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, tryspin);
     gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, stack);
-    gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, empty_page);
-    gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, list_page);
 
     gtk_widget_class_bind_template_child (widget_class, RugbyAppWindow, try_filter);